While holding the parts as indicated above, rotate the metering rod arm B until the finger on the arm at D contacts the lug on the vacuum piston link C. Primary & secondary float will probably have different measurements. Probably not since only one butterfly is open. This allows air instead of fuel to be drawn off the pump jets. Adjust by bending lip of float, not float arm. See figure 9F-2.A float lifter spring, which is connected to the lever arm of the primary float and to a bracket on the accelerator pump plunger, is incorporated to stabilize primary bowl fuel level and prevent float bounce upon sudden stops, or on rough roads (these springs are nowhere to be found). How to Modify a Carter or Edelbrock Carburetor - Muscle Car DIY Other than that, great company to deal with. With mineral spirits in the float bowl, Raise the pump. Examine the viton tip for any marks.Fuel pump pressure could be too high. Pulloffs : CUFWCFB2 $ 0 . The float lifter spring also provides better float and fuel level stability when operating on rough, washboard type roads.A balance passage connects the primary and secondary float chambers to provide fuel level control when the vehicle is accelerating, stopping, or rounding curves. All late model WCFB carburetors have three different length bowl cover screws. There may be a blockage in the accelerator pump circuit which would also make it hard to pump.What is the carburetor number so we can make sure you have the correct pump?Polish the pump well with crocus cloth. Kit looked complete but I ordered the wrong one based on the pump and of course with it being opened, it cannot be returned. Everyone Has Started an Engine in the . Please complete the fields below to send your friend a link to this product. The float lifter spring also provides better float and fuel level stability when operating on rough, washboard type roads. Press down on the vacummeter link (H) until the metering rods bottom in the carburetor body (J). When looking to replace your metering rod keep in mind that Carter used several different lengths of rods in the WCFB. As the engine gains in RPM, the vacuum drops and the metering rods are pulled out of the main jet allowing more fuel to flow. Seat the intake check by tapping lightly in the hole to form a good seal. Carter used metering rods with a single step, 2-step, 3-step, and 4-step. Is there a pointed check weight in the main discharge hole. To correct, remove carburetor and turn it upside down. Carter Carburetor Identification - Carburetor kits, parts and manuals Probably around 4- 4.5lbs. The discharge check is seated at this time to prevent air being drawn into the pump well. This spring is a bit complicated so this video will be very helpful when you change your spring.Find this WCFB spring here: https://www.carburetor-parts.com/wcfb-66d400.htmlFind WCFB parts here:https://www.carburetor-parts.com/wcfb-partscontents:00:0000:42 removing fast idle cam assembly00:56 taking the assembly apart piece by piece01:07 removing the old spring01:22 installing spring02:15 which direction does the pieces go?02:38 assembling the pieces03:16 installing the cam assembly onto the carburetor

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